Well, he was talking to the guy on Facebook, so presumably JA got the pictures from his Facebook profile or from googling his name. I don't think he can be written off quickly just because he mentioned his shop at the end. The interactions do not look faked to me, because there are misunderstandings and bits where someone asks a question, then asks another or says something else before the other person responds to the first question, so it looks a bit out of sync in places, like how happens with real conversations. I'm not sure he would have thought to include little details like that if making up a whole conversation.